He is the man who owns all he land and is the "big fish" around here.
He is the man who owns all he land and is the "big fish" around here. Correct Answer the important man
He is the man who owns all the land and is the big fish around here. Here, big fish is a phrase and its meaning - নামকরা/গুরুত্বপূর্ণ ব্যক্তি। তাই Alternative option, the important man = গুরুত্বপূর্ণ ব্যক্তি।